KXF/RMZ/CRF Showa TAC Air to Spring conversion kit

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Our Showa TAC Air to Spring Fork Conversion Kit is a complete replacement cartridge assembly for your current SHOWA TAC AIR Fork setup.  It is designed to completely remove all the Air system from your current Showa TAC Fork and replace it with a preload adjustable spring and cartridge setup.  

High Quality German Engineered ‘Eibach’ Springs are available to suit varying rider weights.  Please advise upon order or let us know your weight and speed  and we will recommend the best spring for you.

Kit Available for below models only 

SUZUKI RMZ450      2015-2017

KAWASAKI KXF450  2015-2017

HONDA CRF250R    2015-2017 (Not 450)


    Spring Rate Recommendation

    General riding & Motocross applications

    These recommendations  are a guide only as fork Springs are weight and speed dependent. For example a 72 kg Pro rider falls into the 0.92kg/mm category but may well be better suited to a 0.96kg spring due to the much higher corner entry speed and the ability to hit large bumps at high speeds. Please note this guide is for rider weight ‘without’ gear.

    Please note we have had great results using one spring down for Veteran/ C level riders on the 450 machines.  Eg. 90kg rider running a 0.96kg/mm spring for a plusher ride.

    For more accurate advice please consult your local suspension tech or send us an email    

    250F and 2 Strokes

    KG LBS Recommended Spring Rate  Pro or A grade 
     <60kg <130 0.80 kg/mm 0.84kg/mm
    60-65kg 130 -140 0.84kg/mm 0.88kg/mm
    65-75kg 140-165 0.88kg/mm 0.92kg/mm
    75-85kg 165-185 0.92kg/mm 0.96kg/mm
    85-95kg 185-205 0.96kg/mm 1.00kg/mm
    95-100kg 205-220 1.00kg/mm 1.04kg/mm
    100-110kg 220-240 1.04kg/mm 1.08kg/mm
    110kg+ 240+ 1.08kg/mm 1.08kg/mm

     

    450F  

    KG LBS Recommended Spring Rate  Pro or A grade 
     <60kg <130 0.84 kg/mm 0.84kg/mm
    60-65kg 130 -140 0.88kg/mm 0.88kg/mm
    65-75kg 140-165 0.92kg/mm 0.96kg/mm
    75-85kg 165-185 0.96kg/mm 0.98kg/mm
    85-95kg 185-205 0.10kg/mm 1.04kg/mm
    95-100kg 205-220 1.04kg/mm 1.04kg/mm
    100-110kg 220-240 1.04kg/mm 1.08kg/mm
    110kg+ 240+ 1.08kg/mm 1.08kg/mm

     Parts included in the kit

    • Fully Complete Cartridge assembly
    • Alloy Bottoming Cone and Acedal Spring Seat
    • Optional Eibach spring to suit this kit

    Key Features

    • Never have to set your air pressure ever again
    • Much more reliable fork
    • No Fade out or pump up in pressure over long moto’s
    • A Constant feel in your front end that  is more consistent throughout the ride
    • Spring Pre load adjustable minimal tools are required for fitment. If you have the Fork cap and basic tools to remove the standard OEM Air cartridge you will have the ability to fit up our kit.  Our cartridge kit is made from High grade 6061 Aircraft Grade Alloy , Chrome Moly rods and Anodised for a Factory Finish. Instruction manual included.